gtkWidgetGetAccessible(object)
object
AtkObject
instance may be a no-op. Likewise,
if no class-specific AtkObject
implementation is available for the widget
instance in question, it will inherit an AtkObject
implementation from the
first ancestor class for which such an implementation is defined.
The documentation of the ATK (http://developer.gnome.org/doc/API/2.0/atk/index.html)
library contains more information about accessible objects and their uses.